Three months ago, right winger Logan O’Connor had every intention to return to the University of Denver and play out his senior season as the Pioneers’ captain. Tuesday night he will instead make his NHL preseason debut with the Avalanche and play on a line with two guys who are assured of making the opening-night roster. O’Connor, 22, went from an Avs’ development-camp invite in June to signing a maximum, two-year free agent contract July 23.